HV RELAY ASSEMBLY > INSPECTION

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1. SMR1 AND SYSTEM MAIN RESISTOR


    A108055E01

  1. Measure the resistance between the 3 (CON1) and 4 (GND) terminals of the connector for the relay drive of the HV relay assembly.

    Standard resistance:
    70 to 165 Ω (at -30 °C (-22°F) to 80 °C (176°F))

  1. Increase battery voltage between the 3 (CON1) and 4 (GND) terminals of the connector for the relay drive of the HV relay assembly, and measure the resistance between the terminal of the HV battery side positive connector and the w/ convertor inverter assembly side positive terminal of the HV relay assembly.

    HINT:
    The standard resistance indicates the resistance of the system main resistor.

    Standard resistance:
    28.5 to 31.5 Ω



2. SMR2


    A108055E02

  1. Measure the resistance between the 1 (CON2) and 4 (GND) terminals of the connector for the relay drive of the HV relay assembly.

    Standard resistance:
    20 to 60 Ω (at -35°C (-31°F) to 80°C (176°F))

  1. Increase battery voltage between the 1 (CON2) and 4 (GND) terminals of the connector for the relay drive of the HV relay assembly, and measure the resistance between the terminal of the HV battery side positive connector and the w/ converter inverter assembly side positive terminal of the HV relay assembly.

    Standard resistance:
    Below 1 Ω



3. SMR3


    A108054E01

  1. Measure the resistance between the 2 (CON3) and 4 (GND) terminals of the connector for the relay drive of the HV relay assembly.

    Standard resistance:
    20 to 60 Ω (at -35°C (-31°F) to 80°C (176°F))

  1. Increase battery voltage between the 2 (CON3) and 4 (GND) terminals of the connector for the relay drive of the HV relay assembly, and measure the resistance between the terminal of the HV battery side negative connector and the w/ converter inverter assembly side negative terminal of the HV relay assembly.

    Standard resistance:
    Below 1 Ω